Mercedes-Benz C-Class W204 Headlight Ballast D1S A2048700126/130732924001, Stable Output

This replacement matches OEM standards in material and process, using high-density ceramic substrate and high-temperature sealing; resists long-term heat decay and offers improved durability over some aftermarket parts. OEM number 2048700126, fits Mercedes-Benz C-Class W204. Function: provides stable high-voltage output for D1S xenon lamp to ensure quick start and steady brightness without flicker; prevents lamp life reduction due to voltage fluctuation. Replacement difficulty moderate; disconnect battery negative, remove the headlamp assembly back cover, replace the ballast, and secure the wiring connector; ensure waterproof sealing.